subarachnoid
Beneath spider membrane
Subarachnoid describes the space beneath the arachnoid membrane, one of the protective layers surrounding the brain and spinal cord.
This fluid-filled area cushions the central nervous system.
The term appears most often in medical contexts: a subarachnoid hemorrhage is bleeding into this space, typically from a ruptured aneurysm.
Arterial wall bulge
- ruptureViolent tearing apart
- bleedingBlood loss from injury
- vasospasmSudden arterial constriction
- hydrocephalusAbnormal cranial fluid buildup
stroke · coiling · clipping · cerebral · intracranial · trauma · rebleeding · coma
Outermost cerebral membrane
- meningesBrain and cord coverings
- cisternsContainers storing collected water
- cerebrospinalOf brain and spinal cord
- intracranialWithin the skull
spinal cord · ventricles · cortex · cerebellum · brainstem · medulla · gyrus · sulcus
Extracting cerebrospinal fluid diagnostically
- spinal tapCerebrospinal fluid sampling procedure
- CT scanTomographic diagnostic imaging
- angiographyImaging of blood vessels
- contrastNotable difference between things
Membrane inflammation around brain
- encephalitisInflammatory brain condition
- hydrocephalusAbnormal cranial fluid buildup
- subduralBelow the dura mater
- epiduralSpinal numbing injection
infection · inflammation · neurosurgery · adhesions · scarring
aneurysm
Arterial wall bulge
hydrocephalus · stroke · coiling · clipping · cerebral · intracranial · trauma · rebleeding · coma · mortality
dura mater
Outermost cerebral membrane
- meningesBrain and cord coverings
- cisternsContainers storing collected water
- cerebrospinalOf brain and spinal cord
intracranial · spinal cord · ventricles · cortex · cerebellum · brainstem · medulla · gyrus · sulcus · cranial
lumbar puncture
Extracting cerebrospinal fluid diagnostically
- spinal tapCerebrospinal fluid sampling procedure
- CT scanTomographic diagnostic imaging
- angiographyImaging of blood vessels
contrast · imaging · MRI · spectrophotometry
meningitis
Membrane inflammation around brain
- encephalitisInflammatory brain condition
- hydrocephalusAbnormal cranial fluid buildup
- subduralBelow the dura mater
epidural · infection · inflammation · neurosurgery · adhesions · scarring
- Brain Disordersdementia, Alzheimer's, epilepsy, Parkinson's, Alzheimer's disease
subarachnoidepidural
Spinal numbing injection
extradural · subdural · intraventricular · intracerebral · subcutaneous